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Optimization of Frame Length in OFDMA Systems Taking into Account the Control Signaling Cost
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Communication Systems. (Division of Communication Systems)
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology. (Division of Communication Systems)ORCID iD: 0000-0002-7599-4367
2011 (English)In: Proceedings of the IEEE Vehicular Technology Conference (VTC), 2011, IEEE , 2011, 1-5 p.Conference paper, Published paper (Refereed)
Abstract [en]

Dynamic OFDMA has been recognized as a promising technique forimproving the performance of future wireless cellularsystems. However, this potential performance improvement comes at thecost of additional signaling overhead, which can have a non-negligibleeffect on the system efficiency.  In this paper, we propose a newmethod for optimizing the frame length for the downlink in OFDMAsystems. The method maximizes the system efficiency by taking intoaccount both the channel conditions and the amount of signalingoverhead needed to deliver scheduling maps to the users. We formulatethe frame length optimization problem mathematically. By exploitingthe structure of this problem, we develop an algorithm that solves asequence of dynamic programming problems. Simulation results revealsome insight into fundamental limitations as well as provide guidelinesfor the design of dynamic OFDMA systems.

Place, publisher, year, edition, pages
IEEE , 2011. 1-5 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-64603DOI: 10.1109/VETECS.2011.5956516ISBN: 978-1-4244-8332-7 (print)OAI: oai:DiVA.org:liu-64603DiVA: diva2:393145
Conference
2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring; Budapest; Hungary
Available from: 2011-01-28 Created: 2011-01-28 Last updated: 2016-08-31

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Wu, YiTang, ZhiqiangLarsson, Erik G.

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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